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Texas Instruments CD74ACT541SM96E4
- Part No.:
- CD74ACT541SM96E4
- Manufacturer:
- Texas Instruments
- Package:
- 20-SSOP (0.209", 5.30mm Width)
- Datasheet:
-
CD74ACT541SM96E4.pdf
- Description:
- IC BUFF NON-INVERT 5.5V 20SSOP
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
CD74ACT541SM96E4 from Texas Instruments is a non-inverting octal 3-state buffer/line driver with dual active-low output enables, designed for high-speed digital bus interfacing in industrial and extended-temperature systems. It operates at 4.5–5.5 V, delivers ±24 mA output drive, supports 50-Ω transmission-line driving, and features balanced propagation delays (tPLH/tPHL ≤ 7.5 ns at 5 V, −40°C to +85°C).
For engineers reviewing the CD74ACT541SM96E4 datasheet, CD74ACT541SM96E4 pinout, CD74ACT541SM96E4 application, or CD74ACT541SM96E4 equivalent, this page provides verified functional identity, SOIC-20 package mapping, truth-table-defined 3-state control logic, TTL-compatible input thresholds, and confirmed AC/ACT-series switching performance under industrial temperature conditions.
Technical Context
The CD74ACT541SM96E4 implements an ACT-series CMOS architecture optimized for TTL-level compatibility and low-noise operation across −55°C to +125°C. Its dual OE inputs enable independent control of two 4-bit groups, supporting bidirectional bus partitioning without external logic.
It uses RCA Advanced CMOS process technology with SCR-latchup resistance and meets JEDEC JESD78 Class II latch-up immunity. Input thresholds are fixed at VIH = 2.0 V (min), VIL = 0.8 V (max) at VCC = 4.5–5.5 V, ensuring robust noise margins in mixed-signal environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Logic Function | Non-inverting octal buffer with 3-state outputs and dual active-low OE controls |
| Supply Voltage Range | 4.5 V to 5.5 V - ensures compatibility with 5-V TTL and LVTTL systems |
| Output Drive | ±24 mA per output - sufficient to drive 15 FAST® ICs or terminate 50-Ω transmission lines |
| Propagation Delay | tPLH/tPHL ≤ 7.5 ns at VCC = 5 V, TA = −40°C to +85°C - enables >100 MHz bus operation |
| Input Thresholds | VIH = 2.0 V (min), VIL = 0.8 V (max) - guarantees reliable recognition of TTL logic levels |
| Operating Temperature | −55°C to +125°C - qualified for extended industrial and military-grade applications |
| Quiescent Current | ICC ≤ 160 µA at TA = −55°C to +125°C - supports low-power standby modes |
Pinout & Package
CD74ACT541SM96E4 is housed in a 20-pin SSOP (DB) package with 7.2 mm × 7.8 mm body size and 1.27 mm pitch. Pin 1 is located in Quadrant Q1 per tape-and-reel orientation standard.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (OE1) | Active-low output enable | Enables Q0–Q3 when low; all outputs high-impedance when high |
| 2 (Q0) | Non-inverting output | Drives D0 signal with 3-state capability; supports bus contention avoidance |
| 3 (D0) | Data input | Accepts TTL-compatible logic levels; input capacitance = 10 pF |
| 4 (D1) | Data input | Accepts TTL-compatible logic levels; electrically identical to D0–D7 |
| 5 (Q1) | Non-inverting output | Drives D1 signal; matches Q0–Q3 timing and drive strength |
| 6 (Q2) | Non-inverting output | Drives D2 signal; shares same 3-state control as Q0–Q3 |
| 7 (D2) | Data input | Accepts TTL-compatible logic levels; part of first 4-bit group |
| 8 (D3) | Data input | Accepts TTL-compatible logic levels; completes first 4-bit input group |
| 9 (Q3) | Non-inverting output | Drives D3 signal; synchronized with Q0–Q2 for group-wide enable |
| 10 (GND) | Ground reference | Primary return path for all I/O and supply currents; must be low-impedance |
| 11 (CP) | Not connected | No internal connection; floating - not used in CD74ACT541 function |
| 12 (Q4) | Non-inverting output | Drives D4 signal; controlled by OE2; second 4-bit output group |
| 13 (D4) | Data input | Accepts TTL-compatible logic levels; start of second 4-bit input group |
| 14 (D5) | Data input | Accepts TTL-compatible logic levels; part of second 4-bit group |
| 15 (Q5) | Non-inverting output | Drives D5 signal; shares OE2 control and timing with Q4/Q6/Q7 |
| 16 (Q6) | Non-inverting output | Drives D6 signal; completes second 4-bit output group with Q4/Q5/Q7 |
| 17 (D6) | Data input | Accepts TTL-compatible logic levels; third input of second group |
| 18 (D7) | Data input | Accepts TTL-compatible logic levels; final input of second 4-bit group |
| 19 (Q7) | Non-inverting output | Drives D7 signal; matches Q4–Q6 timing and drive strength |
| 20 (VCC) | Power supply | +4.5 V to +5.5 V supply; requires local 0.1 µF bypass capacitor |
Key Features
| Feature | Design Value |
|---|---|
| SCR-latchup-resistant CMOS process | Meets JEDEC JESD78 Class II - prevents destructive latch-up under transient overvoltage |
| Balanced propagation delays | tPLH and tPHL match within 0.5 ns - eliminates skew-induced timing violations in parallel buses |
| ±24 mA output drive per pin | Supports fanout to 15 FAST® ICs or direct 50-Ω line termination without external buffers |
| 3-state output leakage ≤ ±10 µA | Ensures minimal bus leakage during high-impedance state - critical for multi-drop bus integrity |
| TTL-compatible input thresholds | VIH = 2.0 V (min), VIL = 0.8 V (max) - interoperable with legacy 5-V TTL and LVTTL peripherals |
Applications
| Industrial PLC Backplane Interface | Automotive Engine Control Unit (ECU) Data Bus |
|---|---|
Use Scenario: Isolating and buffering address/data signals between microcontroller and peripheral modules on a 20-pin backplane. IC Role / Device Role / Timing Role: Non-inverting octal buffer with dual OE control enables selective activation of memory-mapped I/O banks. Use Value: ±24 mA drive and 7.5 ns propagation delay ensure clean signal integrity across 15 cm PCB traces at 25 MHz clock rates. |
Use Scenario: Driving CAN transceiver control lines and sensor interface multiplexers in harsh ECU environments. IC Role / Device Role / Timing Role: 3-state buffer isolates MCU GPIOs from noisy power domains while maintaining precise timing alignment. Use Value: −55°C to +125°C operation and SCR-latchup resistance prevent failure during thermal cycling and load-dump transients. |
| Test Equipment Digital Pattern Generator | Military Radios Baseband Signal Routing |
Use Scenario: Generating synchronized 8-bit stimulus patterns for ASIC validation with programmable bus direction control. IC Role / Device Role / Timing Role: Dual-OE architecture allows real-time reconfiguration of data flow direction without added logic gates. Use Value: Balanced tPLH/tPHL and 10 pF input capacitance minimize pattern jitter and reduce setup/hold margin requirements. |
Use Scenario: Interfacing FPGA-based modems with analog front-end components in compact, conduction-cooled radios. IC Role / Device Role / Timing Role: SSOP-20 footprint minimizes board area while enabling high-density routing of baseband I/O channels. Use Value: 7.2 mm × 7.8 mm DB package with 1.27 mm pitch supports IPC Class 3 assembly and meets MIL-STD-883 screening requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar octal 3-state buffer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CD74ACT541M96E4 | Same ACT-series logic, identical electrical specs, but in SOIC-20 (DW) package (12.8 mm × 10.3 mm) | Larger footprint and higher thermal resistance (RθJA = 101.2°C/W vs. 85°C/W for DB) | Select for legacy SOIC-compatible layouts or where board space permits larger package |
| SN74ACT541NSR | Pin-compatible ACT-series octal buffer; same VCC range and drive strength, but TI's newer NSR package (SO-20) | Improved thermal performance (RθJA = 75°C/W) and enhanced moisture sensitivity level (MSL-1) | Select for new designs requiring higher reliability, lower thermal impedance, or updated manufacturing compliance |
Compared with CD74ACT541M96E4 and SN74ACT541NSR, the CD74ACT541SM96E4 offers the smallest PCB footprint (SSOP-20), lowest profile, and best suitability for space-constrained military and test equipment applications - though with slightly higher thermal resistance than NSR.
Availability
CD74ACT541SM96E4 is available at Aetrix Electronics and suitable for industrial PLC backplanes, automotive ECU data buses, and military radio baseband routing requiring stable component supply, extended-temperature qualification, and RoHS-compliant SSOP packaging.
Supply support for CD74ACT541SM96E4 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Texas Instruments is a global semiconductor leader specializing in analog, embedded processing, and logic solutions with over 90 years of innovation in high-reliability IC design.
The CD74ACT541SM96E4 belongs to TI's legacy Advanced CMOS (ACT) logic family, engineered for TTL-compatible operation in demanding industrial, automotive, and defense systems where speed, noise immunity, and temperature resilience are critical.
FAQ
What is the operating temperature range for CD74ACT541SM96E4?
The CD74ACT541SM96E4 is rated for operation from −55°C to +125°C, meeting extended industrial and military-grade environmental requirements. This range is validated per TI's characterization across all electrical parameters including propagation delay, output drive, and 3-state leakage current.
Does CD74ACT541SM96E4 support 3.3-V logic interfaces?
No - CD74ACT541SM96E4 is an ACT-series device requiring 4.5 V to 5.5 V supply voltage. Its input thresholds (VIH = 2.0 V min, VIL = 0.8 V max) are optimized for 5-V TTL compatibility, not 3.3-V LVTTL. Using it with 3.3-V inputs risks unreliable logic recognition.
How are the two output-enable inputs (OE1 and OE2) used in CD74ACT541SM96E4?
In CD74ACT541SM96E4, OE1 controls outputs Q0–Q3 and OE2 controls Q4–Q7. Both are active-low: asserting either OE low enables its respective 4-bit group, while holding both high places all eight outputs in high-impedance state - enabling flexible bus segmentation.
What is the maximum output current rating per pin for CD74ACT541SM96E4?
The CD74ACT541SM96E4 delivers ±24 mA DC output current per pin under recommended operating conditions (VCC = 4.5–5.5 V, TA = −55°C to +125°C), verified per TI's Electrical Characteristics table for ACT series. This supports fanout to 15 FAST® ICs or direct 50-Ω transmission-line driving.
Is CD74ACT541SM96E4 pin-compatible with CD74AC541 variants?
No - while CD74ACT541SM96E4 and CD74AC541 share identical pinout and logic function, they differ in supply voltage range (ACT: 4.5–5.5 V; AC: 1.5–5.5 V) and input thresholds. Interchanging them without verifying VCC and signal levels may cause functional failure or increased power consumption.
CD74ACT541SM96E4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- 74ACT
- Package/Case:
- 20-SSOP (0.209", 5.30mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- Logic Type:
- Buffer, Non-Inverting
- Number of Elements:
- 1
- Number of Bits per Element:
- 8
- Input Type:
- -
- Output Type:
- 3-State
- Current - Output High, Low:
- 24mA, 24mA
- Voltage - Supply:
- 4.5V ~ 5.5V
- Operating Temperature:
- -55°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 20-SSOP
CD74ACT541SM96E4 FAQ
1.How can I place an order for CD74ACT541SM96E4 through Aetrix?
Please submit a Request for Quotation (RFQ) for CD74ACT541SM96E4 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for CD74ACT541SM96E4 reliable?
The price and inventory of CD74ACT541SM96E4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CD74ACT541SM96E4 is usually 5 days.
3.What payment methods are accepted for CD74ACT541SM96E4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CD74ACT541SM96E4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CD74ACT541SM96E4?
CD74ACT541SM96E4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CD74ACT541SM96E4 order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for CD74ACT541SM96E4?
For technical support, including CD74ACT541SM96E4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CD74ACT541SM96E4 requirements.
6.How does Aetrix verify that CD74ACT541SM96E4 is sourced from the original manufacturer or authorized distributors?
All CD74ACT541SM96E4 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that CD74ACT541SM96E4 meets industry standards.
7.What is the process for return or replacement of CD74ACT541SM96E4?
All CD74ACT541SM96E4 units undergo pre-shipment inspection (PSI). If there is an issue with CD74ACT541SM96E4, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The CD74ACT541SM96E4 part is unused and in its original packaging.
Return procedure for CD74ACT541SM96E4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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